Page 143 - Exploring the Potential of Self-Monitoring Kidney Function After Transplantation - Céline van Lint

Self-monitoring: the reliability of patient-reported data 141
with registration on the day of measurement were taken into account, adherence to contacting the hospital was 100%.
Figure 4. Reliability of creatinine values registered in the Disease Management System.
a These two values (1291 and 4606) do not add up to the total number of measurements in the device (5804) due to the presence of phantom values.
Sensitivity analysis: adherence to and reliability of blood pressure measurements
In total 31 blood pressure devices could be read out. The total number of values found in the 31 available pressure devices was 4917, total number of values registered in the SMSS was 5637. The higher number of registered than measured blood pressures is due to patients using multiple blood pressure devices during study participation, while data of only one device was available. Adherence to registration of blood pressure measurements was comparable to creatinine registrations with 70%, 88%, 87% and 81% of patients registering >75% of the requested number of measurements during phase one, two, three and four, respectively. Although the percentage of registrations not corresponding to the measured MAP was comparable to what we found for creatinine (14% vs. 13%, respectively), we could not replicate the significant difference between registered and actually
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